1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olga nikolaevna [1]
3 years ago
13

What is the solution to the following system of equations?

Mathematics
2 answers:
Paraphin [41]3 years ago
8 0

Answer:

Option 2 ( 1,-10)

Step-by-step explanation:

The two equations are y = -x²-5x-4 -----(1)

                              and y = -x²+9x-18-------(2)

To get the solution of these lines we will substitute the value of y form equation 1 to 2.

- x² - 5x -4 = -x²+9x-18

Now by collecting similar terms on each side.

-x² -5x + x²-9x = -18 + 4

-14x = -14

14x = 14

x = 1

By putting the value of x in equation 1.

y = -1 - 5 - 4 = -10

So the solution is (1, -10)

Therefore Option 2 is the correct answer.

Oduvanchick [21]3 years ago
6 0

Answer:

choice 2 is correct.

Step-by-step explanation:

We have given the following system of equations

y = x² - 5x -4     ( eq I )

y = -x² + 9x - 18  ( eq II)

Putting the value of y from (eq I) in (eq II).

-x²-5x-4 = -x²+ 9x - 18

-x²+x²-5x-9x-4+18 = 0

-14x +14 =0

-14x = -14

x = -14 / -14

x= 1

Putting the value of x in equation I to find the value of y

y =  -(1)² - 5(1) -4

y = -1 -5-4

So,(1 ,-10 ) is the solution  of given system of equations.

You might be interested in
They have a total of w dollars to buy 5 tickets each ticket costs 15 dollars
Dmitrij [34]

Answer:

$75

Step-by-step explanation:

If they have a total of w dollars to buy 5 tickets, and each ticket costs 15 dollars, $15 x 5 tickets = $75.

3 0
2 years ago
Read 2 more answers
Queen spend 3/5 hrs studying and spend 4 /10 hrs at the computer. How much less time does queen spend at the computer compared t
Ksju [112]

Answer:

Queen spends 1 1/1 less time at studying.

4 0
2 years ago
Which relation does not represent a function​
Nastasia [14]

Answer:

For example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.

Hope this helped

3 0
2 years ago
$4,700 is invested in an account earning 6.2% interest (APR), compounded
pickupchik [31]

Answer:

(5 x (-20)) * (100 x (0.7))

4 0
2 years ago
Which interval describes where the graph of the function is positive?
Ad libitum [116K]

Answer:

D is the correct answer.

Step-by-step explanation:

Find the portion of the graph that is above the x-axis.

8 0
1 year ago
Read 2 more answers
Other questions:
  • At a day camp there is 56 girls and 42 boys the campers need to be split into equal groups each has either all girls are all boy
    12·1 answer
  • HELP PLEASE. DON'T BAIL OUT! 60 POINTS!
    15·1 answer
  • Solve for s. y=sx+g.
    15·2 answers
  • Can someone help me?
    5·2 answers
  • How do you use a number line to solve 58+19
    10·1 answer
  • Simplify 5^4/5. ~Please Hurry !!
    14·2 answers
  • Please answer 30 points
    6·2 answers
  • A sheet of paper is 8.5 in X 11 inches if you cut 2 in squared from each corner what is the area if the paper
    5·1 answer
  • Blankdsffffffffffffffffffffffffffffffffffffffffffffffdsf sdffffffffffff sdf
    5·2 answers
  • 40 POINTS PLEASE HURRY! Which table shows a set of ordered pairs that satisfies the equation shown?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!